Corispermum hyssopifolium
Corispermum hookeri
bugseed, hyssop-leaf bugseed
Hooker bugseed, Hooker's bugseed
blades linear-lanceolate or linear; usually plane,1.5–3.5(–4) × 0.2–0.4(–0.5) cm.
blades narrowly lanceolate or linear-lanceolate, plane, 2–5 × (0.1–)0.2–0.5(–0.6) cm.
ovate or ovate-lanceolate (rarely narrowly ovate-lanceolate to ± lanceolate), 0.5–1.5(–2) × 0.3–0.7 cm.
ovate or ovate-lanceolate, 0.5–1.5(–2) × 0.3–1 cm.
compact, usually not strongly condensed at apex, occasionally interrupted near base, linear, oblong-linear, or indistinctly clavate-linear.
usually dense, ovoid, ovate-clavate, or ovate-cylindric, rarely interrupted near base.
segments 1(–3).
segment 1.
brown, dark brown, or deep olive green, usually without spots and warts, broadly elliptic, prominently convex abaxially, usually plane or slightly concave adaxially, obovate-elliptic, or ± orbiculate, broadest near middle (rarely slightly beyond middle), 2.2–3.2 (–3.5) × 1.7–2.8 mm shiny wing (when present) translucent at margins, 0.1(–0.15) mm wide, margins entire, apex rounded.
usually deep olive green, brown, or rarely to almost black, usually without spots and/or warts, or occasionally spotted, strongly convex abaxially, prominently concave to almost plane adaxially, usually broadest beyond middle, (3.2–)3.5–4.5(–5) × 2.2–3.3(–3.5) mm;
wing (when present) semitranslucent, to 0.2 mm wide, margins entire, apex rounded or indistinctly triangular.
Corispermum hyssopifolium
Corispermum hookeri
In addition to the key characteristics, Corispermum hyssopifolium is distinguished by having style bases short, barely exposed over the edge of wing and fruit surfaces which are glabrous and shiny.
The application of the Linnaean name Corispermum hyssopifolium is problematic. The standing lectotype (C. E. Jarvis et al. 1993; I. C. Hedge 1997) and traditional circumscription of C. hyssopifolium (as understood by M. M. Iljin 1936; P. Aellen 1961, 1964; and many others) are accepted here.
No unquestionable specimens of Corispermum hyssopifolium sensu stricto are known from North America. A collection from Colorado and some collections from Missouri approach this species most closely (S. L. Mosyakin 1995). However, their fruit morphology suggests that they are either members of the native Asian and North American group centered around C. pallasii, or resulted from hybridization between C. hyssopifolium and native representatives of subsect. Pallasiana.
The name Corispermum hyssopifolium has been misapplied to the majority of species of the genus.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Varieties 2 (2 in the flora).
The inflorescence bracts of Corispermum hookeri are conspicuously imbricate (usually strongly overlapping). Corispermum hookeri seems to be closely related to the narrow-winged taxa, C. villosum and C. ochotense, and to C. pallasii sensu stricto. The names C. orientale and C. hyssopifolium have been commonly misapplied to this species.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Inflorescences dense throughout, rarely interrupted. Fruits oblong-obovate to obovate | var. hookeri |
1. Inflorescences dense only at apex, interrupted. Fruits elongate to oblong-obovate | var. pseudodeclinatu |
CA
WildflowerSearch
iNaturalist
USDA Plants Database
BC
WA
Flora NW
PNW Herbaria
